A bipartisan US panel, the Iraq Study Group, has released a much-awaited report advocating a major change in policy in Iraq. While admitting there is no "magic formula" to the Iraqi crisis, it urges the US to involve Iran and Syria in talks and to work towards redeploying or withdrawing its own troops.
Here is how leaders in the US - and around the world - responded to the report.
US PRESIDENT GEORGE W BUSH
"This report gives a very tough assessment of the situation in Iraq.
"It is a report that brings some really very interesting proposals, and we will take every proposal seriously and we will act in a timely fashion.
"I urge the members of Congress to take this report seriously. While they won't agree with every proposal - and we probably won't agree with every proposal - it, nevertheless, is an opportunity to come together and to work together on this important issue... I understand how difficult that is."
NANCY PELOSI, DEMOCRATIC LEADER IN HOUSE OF REPRESENTATIVES
The bipartisan Iraq Study Group has concluded that the president's Iraq policy has failed and must be changed. As the November elections clearly demonstrated, that is an assessment shared by the American people.
"If the president is serious about the need for change in Iraq, he will find Democrats ready to work with him in a bipartisan fashion to find a way to end the war as quickly as possible."
DEMOCRATIC SENATOR HILLARY CLINTON
"Today's report from the Iraq Study Group shows the growing bipartisan consensus that we need a dramatic change of course in Iraq, including a redeployment of American troops.
"The American people have spoken. The Iraq Study Group has spoken. Experts across the political spectrum have spoken. Even the president's nominee for defence secretary has spoken. Now it's time for the president to listen and change the course in Iraq."
INCOMING US SENATE REPUBLICAN LEADER MITCH MCCONNELL
"I think we all know there is no quick or easy way to complete the important mission in Iraq, and those who hoped this report would provide a get-done-quick solution will be disappointed.
"And though we won't reach agreement overnight, this is an opportunity for us to work in a bipartisan way with Democrats and the White House and reach consensus on one of the most critical issues before the Congress."
CARL LEVIN, DEMOCRATIC SENATOR AND INCOMING CHAIRMAN OF SENATE ARMED SERVICES COMMITTEE
"The report represents another blow at the policy of 'stay the course' that this administration has followed. Hopefully, this will be the end of that stay-the-course policy.
"The American people rose up against staying the course in Iraq, because the course is not working."
UK FOREIGN SECRETARY MARGARET BECKETT
"It's a substantial and complex piece of work, to which of course the prime minister and senior officials have contributed. From those discussions, you get the impression that their thinking was broadly in line with our own but obviously we need to read and digest their formal recommendations."
SALIM AL-JUBOURI, SPOKESMAN FOR MAIN SUNNI BLOC IN IRAQI PARLIAMENT
"We find some of its points positive but, on the whole, we feel it's vague and avoids some issues. We don't want to see an immediate withdrawal that would cause chaos but we wanted a timetable for withdrawal.
"We think the issue of addressing Syria and Iran is an admission of their massive interference.
"We don't see it as necessary to increase the number of US troops to train Iraqi forces. We just think they need to get more serious about it."
HASSAN AL-SHIMMARI, TOP OFFICIAL IN IRAQI PARLIAMENT'S MAIN SHIA BLOC
"I think it was correct to analyse that the problem is political. It's natural to have talks with parties who are using Iraq as a place to settle scores among themselves.
"If the Americans reached a common agreement with the Syrians, Iranians and all the other international players with the involvement of the Iraqi government then it should have a positive impact because the bulk of the reasons why Iraq is
deteriorating are external."
MOHSEN BILAL, SYRIAN INFORMATION MINISTER
"We talked to him [James Baker, chairman of the Iraq Study Group]. He has a long talk and conversation with our foreign minister in New York and we hope for the president to be convinced that Syria is a part of the solution and not a part of the problem. We are a partner to help to solve that horrible problem."
KARSTEN VOIGT, GERMANY'S MINISTER IN CHARGE OF RELATIONS WITH US
"The commission is proposing a change in course that is urgently required... I believe that the US Congress will come under great pressure to implement the recommendations."